The moment he obtained Ame-no-Futodama-no-Mikoto, the bewildered Itachi began deducing his own future.
He saw:
His past self, clad in an ANBU uniform, personally killing Danzo.
That future had happened in the past.
Too much chaos and blurred barriers of time and space lay in between, so Itachi Uchiha could not see what had happened during that interval.
But he could be certain that, if he continued onward at his current pace, he would reach that conclusion—
His past self would personally kill Danzo, the source of all evil, and prevent the tragedy of his clan's extermination.
That was where everything began.
As long as Itachi could reach that ending, every tragedy up to this point would be reversed.
Even if this body of his died as a result, it did not matter.
As long as his past self—the one who had not chosen to slaughter his entire clan—could survive, that would be enough.
Itachi Uchiha asked the White Snake Sage, who had lived for a thousand years, about this.
"Will the future I saw become reality?"
In response, the White Snake Sage took a drag from her pipe. Rather than directly telling him whether he was right or wrong, she merely said calmly:
"Even the Great Toad Sage can no longer see the future. What you saw... was it really the future?"
Itachi Uchiha knew that the White Snake Sage was right.
What he had deduced was indeed not the future.
It was the past.
In Itachi's despairing life, Ame-no-Futodama-no-Mikoto had found him a narrow path toward rebirth.
He had learned that "lifting the Dragon Vein's seal would allow one to travel through time and space."
Itachi intended to return to the past through the Dragon Vein's seal.
That was why he had killed so freely.
As long as